For a long time, the NFL held the line against alternate uniforms and helmets. You could always predict what the teams would be wearing every Sunday, as

After years of strict uniform rules, the NFL has begun to relax some of their policies to allow teams to be a bit more creative with what they were on a weekly basis. Last offseason, the league allowed teams to feature a third alternative helmet to be used alongside their home and away helmets.

The NFL announced that it will allow teams to wear alternate and throwback jerseys up to four teams in a single season, which led to very pronounced opinions from fans on social media